Page 199 - Innovator's Science-8

Model Test Paper-1 Chapters 1 to 7

A. Darken the correct option in the OMR SHEET :
OMR Sheet
1. Which natural object helps us measured time through its phases?
a. Sun b. Mars

c. Moon d. Earth

2. What type of microorganism is yeast?
Wrong Methods
a. algae b. protozoa
c. fungi d. bacteria Correct Method
3. We should say ‘No’ to the substances like ___________ .
a. wheat b. lime 1. a b c d
c. alcohol d. exercise
2. a b c d
4. Which of the following is an example of non-contact force?
a. Pulling a rickshaw b. Li ing a bucket 3. a b c d
c. Kicking a football d. Falling of a stone
4. a b c d
5. The moving air is called :
a. wind b. storm 5. a b c d
c. cyclone d. all of these
B. Fill in the blanks :
1. ___________ affect our daily lives, agriculture and ever our safety.
2. A _____________ is the smallest unit of life.
3. A disease affects the normal working of the body or ___________.
4. Nichrome offers more ____________ to the flow of current compared to copper.
5. __________ is defined as the force ac ng per unit area.
6. A _____________ is a storm accompanied with thunder.
C. State whether the given statements are True (T) or False (F):
1. The puffing of a puri is an example of steam formation inside the dough.
2. Microalgae are microscopic plant like organisms.
3. Clean surrounding can reduce the spread of communicable diseases.
4. Pure water can be used as an electrolyte in a voltaic cell.
5. Upward movement of air causes clear sky and downward movement of air causes cloudy sky.
6. Acharya Kanad, talked about the idea of a atom.
D. Short answer type ques ons.
1. Why has nature created such a vast variety?
2. Name the process in yeast that converts sugars into alcohol.
3. Name one communicable disease caused by a virus.
4. What is electrode?
5. What is fric onal force?
E. Answer the following questions :
1. Why is classifying substances important in science?
2. What are the stops to grow Sprirulina?
3. Describe two ways to prevent the spread of the flu.
4. Are electromagnets also used in real life for lifting objects?
5. Dis nguish between contact forces and non-contact forces with example.
6. How does temperature affect the movement of particles?

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